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    <title>OceanBase by alibaba</title>
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        <h1>OceanBase</h1>
        <h2></h2>
        <a href="https://github.com/alibaba/oceanbase" class="button"><small>View project on</small>GitHub</a>
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          <p><img src="https://raw.github.com/alibaba/oceanbase/oceanbase_0.3/doc/%E5%9B%BE%E7%89%87%E5%A4%B9/logo.jpg" alt="logo"><b><a href="https://github.com/alibaba/oceanbase/wiki/Oceanbase">English Version</a></b></p>

<p>OceanBase是<a href="http://page.china.alibaba.com/shtml/about/ali_group1.shtml">阿里巴巴集团</a>自主研发的可扩展的关系型数据库，OceanBase实现了跨行跨表的事务，支持数千亿条记录、数百TB数据上的SQL操作，截止到2012年8月为止，OceanBase数据库支持了阿里巴巴集团下多个重要业务的数据存储，支持业务包括收藏夹、直通车报表、天猫评价等，截止2013年4月份，OceanBase线上业务的数据量已经超过一千亿条。</p>

<h1>
<a name="1-%E6%9C%80%E6%96%B0%E5%8A%A8%E6%80%81" class="anchor" href="#1-%E6%9C%80%E6%96%B0%E5%8A%A8%E6%80%81"><span class="octicon octicon-link"></span></a>1 最新动态</h1>

<p><b>2013/07/29，合并最新的bugfix和特性到0.41分支上：</b> </p>

<p>【重要】UpdateServer: UPS第一次启动可能会因为重用commitlog而把最新的commitlog文件覆盖掉</p>

<p>【重要】RootServer: 修复Merge Server下线后收到心跳回复没有重新更新回__all_server表问题</p>

<p>【重要】ChunkServer: ObMultipleScanMerge在合并中某个场景下可能出错 </p>

<p><a href="https://github.com/alibaba/oceanbase/wiki/OceanBase-0.4.1-1225%E5%8F%91%E5%B8%83%E8%AF%B4%E6%98%8E">查看发布说明</a></p>

<h1>
<a name="2-%E5%8F%91%E8%A1%8C%E6%97%A5%E5%BF%97" class="anchor" href="#2-%E5%8F%91%E8%A1%8C%E6%97%A5%E5%BF%97"><span class="octicon octicon-link"></span></a>2 发行日志</h1>

<ul>
<li>
<b>2013/04/28，整理提交了V0.4.1代码和相关技术文档。</b> </li>
<li>2013/03/04，整理提交了V0.3.1代码和相关技术文档。</li>
</ul><h1>
<a name="3-%E7%89%88%E6%9C%AC%E7%89%B9%E6%80%A7" class="anchor" href="#3-%E7%89%88%E6%9C%AC%E7%89%B9%E6%80%A7"><span class="octicon octicon-link"></span></a>3 版本特性</h1>

<ul>
<li>使用libeasy网络框架代替了原来的tbnet，实现更高的网络处理性能</li>
<li>全面支持mysql协议</li>
<li>支持SQL的客户端库</li>
<li>全面支持SQL</li>
<li>易用性改进</li>
</ul><p><a href="https://github.com/alibaba/oceanbase/wiki/OceanBase-0.4-%E7%89%88%E6%9C%AC%E7%89%B9%E6%80%A7">详细列表</a> </p>

<h1>
<a name="4-%E8%B5%84%E6%BA%90%E5%9C%B0%E5%9D%80" class="anchor" href="#4-%E8%B5%84%E6%BA%90%E5%9C%B0%E5%9D%80"><span class="octicon octicon-link"></span></a>4 资源地址</h1>

<ul>
<li>OceanBase 源码：https://github.com/alibaba/oceanbase</li>
<li>OceanBase RPM包：https://github.com/alibaba/oceanbase_rpm_package</li>
<li>OceanBase 客户端：https://github.com/alibaba/oceanbase_client</li>
</ul><h1>
<a name="5-%E4%BA%A7%E5%93%81%E6%96%87%E6%A1%A3%E5%AF%BC%E8%AF%BB" class="anchor" href="#5-%E4%BA%A7%E5%93%81%E6%96%87%E6%A1%A3%E5%AF%BC%E8%AF%BB"><span class="octicon octicon-link"></span></a>5 产品文档导读</h1>

<table width="100%" border="1" frame="all" rules="all">
<tr>
<td width="9%"><b>序号</b></td>
    <td width="29%"><b>文档名称</b></td>
    <td colspan="2"><b>使用说明</b></td>
  </tr>
<tr>
<td width="9%"><div align="center">1</div></td>
    <td width="29%"><a href="https://github.com/alibaba/oceanbase/wiki/OceanBase-%E6%8F%8F%E8%BF%B0" target="_blank">《OceanBase 描述》</a></td>
    <td width="55%">该文档主要介绍OceanBase数据库的架构、存储引擎和功能等信息。</td>
    <td width="7%"><a href="https://raw.github.com/alibaba/oceanbase/oceanbase_0.4/doc/wiki/OceanBase%20%E6%8F%8F%E8%BF%B0.pdf">下载</a></td>
  </tr>
<tr>
<td width="9%"><div align="center">2</div></td>
    <td width="29%"> <a href="https://github.com/alibaba/oceanbase/wiki/OceanBase-%E5%AE%89%E8%A3%85%E6%8C%87%E5%8D%97" target="_blank"> 《OceanBase 安装指南》</a>
</td>
    <td width="55%">该文档主要介绍OceanBase数据库的安装过程。</td>
    <td width="7%">
<a href="https://raw.github.com/alibaba/oceanbase/oceanbase_0.4/doc/wiki/OceanBase%20%E6%8F%8F%E8%BF%B0.pdf"></a><a href="https://raw.github.com/alibaba/oceanbase/oceanbase_0.4/doc/wiki/OceanBase%20%E5%AE%89%E8%A3%85%E6%8C%87%E5%8D%97.pdf">下载</a>
</td>
  </tr>
<tr>
<td width="9%"><div align="center">3</div></td>
    <td width="29%"><a href="https://github.com/alibaba/oceanbase/wiki/OceanBase-%E5%BF%AB%E9%80%9F%E5%85%A5%E9%97%A8" target="_blank">《OceanBase 快速入门》</a></td>
    <td width="55%">该文档主要介绍如何快速入门OceanBase的方法。</td>
    <td width="7%"><a href="https://raw.github.com/alibaba/oceanbase/oceanbase_0.4/doc/wiki/OceanBase%20%E5%BF%AB%E9%80%9F%E5%85%A5%E9%97%A8.pdf">下载</a></td>
  </tr>
<tr>
<td width="9%"><div align="center">4</div></td>
    <td width="29%"><a href="https://github.com/alibaba/oceanbase/wiki/OceanBase-%E5%AE%A2%E6%88%B7%E7%AB%AF-%E7%94%A8%E6%88%B7%E6%8C%87%E5%8D%97" target="_blank">《OceanBase 客户端 用户指南》</a></td>
    <td width="55%">该文档主要介绍OceanBase数据库的Java客户端和C客户端的使用方法。</td>
    <td width="7%">
<a href="https://raw.github.com/alibaba/oceanbase/oceanbase_0.4/doc/wiki/OceanBase%20%E6%8F%8F%E8%BF%B0.pdf"></a><a href="https://raw.github.com/alibaba/oceanbase/oceanbase_0.4/doc/wiki/OceanBase%20%E5%AE%A2%E6%88%B7%E7%AB%AF%20%E7%94%A8%E6%88%B7%E6%8C%87%E5%8D%97.pdf">下载</a>
</td>
  </tr>
<tr>
<td><div align="center">5</div></td>
    <td><a href="https://github.com/alibaba/oceanbase/wiki/OceanBase-%E5%AE%A2%E6%88%B7%E7%AB%AF-%E7%94%A8%E6%88%B7%E6%8C%87%E5%8D%97%EF%BC%88%E9%98%BF%E9%87%8C%E5%86%85%E9%83%A8%EF%BC%89" target="_blank">《OceanBase 客户端 用户指南（阿里内部）》</a></td>
    <td>
<p>该文档主要介绍OceanBase Java客户端和OceanBase C客户端的使用方法。与《OceanBase 客户端 用户指南》相比，本文档增加了OceanBase配置中心和OceanBase Java客户端中的阿里内部模块“oceanbase.jar”的介绍。</p>
    </td>
    <td><a href="https://github.com/alibaba/oceanbase/blob/oceanbase_0.4/doc/wiki/OceanBase%20%E5%AE%A2%E6%88%B7%E7%AB%AF%20%E7%94%A8%E6%88%B7%E6%8C%87%E5%8D%97%EF%BC%88%E9%98%BF%E9%87%8C%E5%86%85%E9%83%A8%EF%BC%89.pdf?raw=true">下载</a></td>
  </tr>
<tr>
<td width="9%"><div align="center">6</div></td>
    <td width="29%"><a href="https://github.com/alibaba/oceanbase/wiki/OceanBase-SQL-%E5%8F%82%E8%80%83%E6%8C%87%E5%8D%97" target="_blank">《OceanBase SQL 参考指南》</a></td>
    <td width="55%">该文档主要介绍OceanBase数据库支持的SQL语言、语法规则和使用方法等。</td>
    <td width="7%">
<a href="https://raw.github.com/alibaba/oceanbase/oceanbase_0.4/doc/wiki/OceanBase%20%E6%8F%8F%E8%BF%B0.pdf"></a><a href="https://raw.github.com/alibaba/oceanbase/oceanbase_0.4/doc/wiki/OceanBase%20SQL%20%E5%8F%82%E8%80%83%E6%8C%87%E5%8D%97.pdf">下载</a>
</td>
  </tr>
<tr>
<td width="9%"><div align="center">7</div></td>
    <td width="29%"><a href="https://github.com/alibaba/oceanbase/wiki/OceanBase-%E5%8F%82%E8%80%83%E6%8C%87%E5%8D%97" target="_blank">《OceanBase 参考指南》</a></td>
    <td width="55%">该文档主要介绍OceanBase的日志参考、系统结果码和术语等信息。</td>
    <td width="7%">
<a href="https://raw.github.com/alibaba/oceanbase/oceanbase_0.4/doc/wiki/OceanBase%20%E6%8F%8F%E8%BF%B0.pdf"></a><a href="https://raw.github.com/alibaba/oceanbase/oceanbase_0.4/doc/wiki/OceanBase%20%E5%8F%82%E8%80%83%E6%8C%87%E5%8D%97.pdf">下载</a>
</td>
  </tr>
</table><h1>
<a name="6-%E5%85%B6%E4%BB%96%E6%96%87%E6%A1%A3%E5%88%97%E8%A1%A8" class="anchor" href="#6-%E5%85%B6%E4%BB%96%E6%96%87%E6%A1%A3%E5%88%97%E8%A1%A8"><span class="octicon octicon-link"></span></a>6 其他文档列表</h1>

<ul>
<li><a href="https://github.com/alibaba/oceanbase/tree/oceanbase_0.4/doc/chunkserver%E8%AE%BE%E8%AE%A1%E6%96%87%E6%A1%A3">ChunkServer设计文档</a></li>
<li><a href="https://github.com/alibaba/oceanbase/tree/oceanbase_0.4/doc/mergeserver%E8%AE%BE%E8%AE%A1%E6%96%87%E6%A1%A3">mergeServer设计文档</a></li>
<li><a href="https://github.com/alibaba/oceanbase/tree/oceanbase_0.4/doc/rootserver%E8%AE%BE%E8%AE%A1%E6%96%87%E6%A1%A3">rootServer设计文档</a></li>
<li><a href="https://github.com/alibaba/oceanbase/tree/oceanbase_0.4/doc/updateserver%E8%AE%BE%E8%AE%A1%E6%96%87%E6%A1%A3">updateServer设计文档</a></li>
<li><a href="https://github.com/alibaba/oceanbase/tree/oceanbase_0.4/doc/%E4%BD%BF%E7%94%A8%E8%BF%90%E7%BB%B4">运维文档</a></li>
<li>
<a href="https://github.com/alibaba/oceanbase/wiki/Project-Plan">Project Plan</a> </li>
</ul><h1>
<a name="7-%E8%81%94%E7%B3%BB%E6%88%91%E4%BB%AC" class="anchor" href="#7-%E8%81%94%E7%B3%BB%E6%88%91%E4%BB%AC"><span class="octicon octicon-link"></span></a>7 联系我们</h1>

<p></p><p align="left">如果您有任何疑问或是想了解OceanBase的最新开源动态消息，请联系我们：</p>
  <p align="left"><b>支付宝（中国）网络技术有限公司·OceanBase团队</b></p>
  <p align="left">地址：杭州市万塘路18号黄龙时代广场B座</p>
  <p align="left">邮编：310099</p>
  <p align="left">邮箱： <a href="mailto:alipay-oceanbase-support@list.alibaba-inc.com"></a><a href="mailto:alipay-oceanbase-support@list.alibaba-inc.com">alipay-oceanbase-support@list.alibaba-inc.com</a></p>
  <p align="left"> 新浪微博：<a href="http://weibo.com/u/2356115944"></a><a href="http://weibo.com/u/2356115944">http://weibo.com/u/2356115944</a></p>
  <p align="left">技术交流群（阿里旺旺）：853923637</p>
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